Gp agrawal (37 risultati)

Hardback. Condizione: Good. Since its invention in 1962, the semiconductor laser has come a long way. Advances in material purity and epitaxial growth techniques have led to a variety of semiconductor lasers covering a wide wavelength range of 0. 3- 100 ILm. The development during the 1970s of GaAs semiconductor lasers, emitting in the near-infrared region of 0. 8--0. 9 ILm, resulted in their use for the first generation of optical fiber communication systems. However, to take advantage of low losses in silica fibers occurring around 1. 3 and 1. 55 ILm, the emphasis soon shifted toward long-wavelength semiconductor lasers. The material system of choice in this wavelength range has been the quaternary alloy InGaAsP. During the last five years or so, the intense development effort devoted to InGaAsP lasers has resulted in a technology mature enough that lightwave transmission systems using InGaAsP lasers are currently being deployed throughout the world. This book is intended to provide a comprehensive account of long-wave- length semiconductor lasers. Particular attention is paid to InGaAsP lasers, although we also consider semiconductor lasers operating at longer wave- lengths. The objective is to provide an up-to-date understanding of semicon- ductor lasers while incorporating recent research results that are not yet available in the book form. Although InGaAsP lasers are often used as an example, the basic concepts discussed in this text apply to all semiconductor lasers, irrespective of their wavelengths.…

Hardback. Condizione: Good. Provides a concise account of fibre-optic communication systems, emphasizing both physical understanding and the underlying engineering aspects. The author discusses fibre amplifiers, and reviews the progress made in the development of solition communication systems.

Hardback. Condizione: Good. Since its invention in 1962, the semiconductor laser has come a long way. Advances in material purity and epitaxial growth techniques have led to a variety of semiconductor lasers covering a wide wavelength range of 0. 3- 100 ILm. The development during the 1970s of GaAs semiconductor lasers, emitting in the near-infrared region of 0. 8--0. 9 ILm, resulted in their use for the first generation of optical fiber communication systems. However, to take advantage of low losses in silica fibers occurring around 1. 3 and 1. 55 ILm, the emphasis soon shifted toward long-wavelength semiconductor lasers. The material system of choice in this wavelength range has been the quaternary alloy InGaAsP. During the last five years or so, the intense development effort devoted to InGaAsP lasers has resulted in a technology mature enough that lightwave transmission systems using InGaAsP lasers are currently being deployed throughout the world. This book is intended to provide a comprehensive account of long-wave- length semiconductor lasers. Particular attention is paid to InGaAsP lasers, although we also consider semiconductor lasers operating at longer wave- lengths. The objective is to provide an up-to-date understanding of semicon- ductor lasers while incorporating recent research results that are not yet available in the book form. Although InGaAsP lasers are often used as an example, the basic concepts discussed in this text apply to all semiconductor lasers, irrespective of their wavelengths.…

Hardback. Condizione: Good. Provides a concise account of fibre-optic communication systems, emphasizing both physical understanding and the underlying engineering aspects. The author discusses fibre amplifiers, and reviews the progress made in the development of solition communication systems.

Hardback. Condizione: Fair. The physical understanding of fiber optic communication systems is emphasized in this book, with the engineering aspects also discussed throughout. This second edition includes a new chapter on dispersion management and a completely rewritten chapter on solution communication systems. Case studies are included and the book is also accompanied by a solutions manual.…

Hardback. Condizione: Fair. The physical understanding of fiber optic communication systems is emphasized in this book, with the engineering aspects also discussed throughout. This second edition includes a new chapter on dispersion management and a completely rewritten chapter on solution communication systems. Case studies are included and the book is also accompanied by a solutions manual.…

Hardcover. Condizione: Fair. Contents: 1. Biotechnology and plant sciences opportunities for SAARC countries/S. Ramachandran and S. Natesh. 2. Gene cloning for crop improvement/B.B. Biswas. 3. Pod-wall metabolism in relation to dry matter and protein accumulation in developing seeds of chickpea (Cicer arietinum L.)/V.K. Gupta and Randhir Singh. 4. Micropropagation of woody taxa and plant productivity/Shrish C. Gupta and Veena Agrawal. 5. Productivity of tea (Camellia sinensis (L.)) in relation to other tropical perennial crops/S. Kulasegaram and G. Wadasinghe. 6. Chloroplasts response to low water potentials: changes in chlorophyll fluorescence yield and emission of chloroplasts as affected by low leaf-water potential/Prasanna Mohanty. 7. Effect of GA3 on nitrogen fixation in some forage legumes of Nepal/B.N. Prasad and S.N. Mathur. 8. Effect of Rhizobium inoulation on the nodulation and grain yield of soybean in combination with chemical fertilisers/Shanti Bhattarai and Surya L. Maskey. 9. Bioconversion of B-sitosterol into 17-ketosteroids by some strains of Arthrobacter/S. Mathur, M.C. Bhatia and S.N. Mathur. 10. Regeneration of plants from leaf explant in orchid vanda teres lind/R. Niraula and S.B. Rajbhandary. 11. Generation of genetic variability by the Chrysanthemum tissue culture method/Asha Karki. 12. In vitro morphogenetic studies in Amaranthus paniculatus L./C.M. Govil. 13. Ecology and agriculture/Mervyn W. Thenabadu. 14. Proline accumulation in some halophytes in the Indian desert/David N. Sen and Sher Mohammed. 15. Ecophysiological effects of some heavy metallic pollutants on two aquatic macrophytes/Govind Ghimire and K.M.M. Dakshini. 16. Probable direction of evolution in the genus Anemone L. (Ranunculaceae)/Ram P. Chaudhary. 17. Response of improved wheat cultivars of Nepal to a change in environment/Sabitri Shrestha. 18. Evaluation of wheat genotypes adapted to Nepal/R.C. Sharma and N.K. Chaudhary. 19. Hormonal role in the sterility of rice (Oryza sativa L.)/Santa B. Gurung. 20. A study on the productivity of Amaranthus hypochondriacus L./P.K. Jha, J.P. Sah and M.K. Chettri. 21. SO2 stress on yield of Avena sativa L./Subhash Chand and N.K. Yadav. 22. Investigation on physiology of bulb formation in some short-day onion varieties/S.K. Regmi, L. Pun and I.R. Pandey. 23. Influence of night temperature during floret differentiation on microsporogenesis and seed-setting in sorghum (Sorghum bicolor (L) Moench)/A.M. Dhopte and J.D. Eastin. 24. Changes in total soluble protein and leghaemoglobin content of the nodules at various stages of plant growth in relation to flowering and pod formation in Vigna sinensis L./Nisha Thakral. 25. Cytological studies on nitrous-oxide treated red clover (Trifolium pratense L.)/N. Giri. 26. Pollen studies in Cardamine L. (Cruciferae Juss.)/K.S. Khatri.…

Hardcover. Condizione: Fine. Condizione sovraccoperta: Fine. hardback in near fine condition in fine dust jacket. name on 1st blank page otherwise clean.

Hardcover. Condizione: Very Good. 252 Pages Usual Ex-Lib Marks O/W Sound.

Condizione: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In fair condition, suitable as a study copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,750grams, ISBN:9781563962110.…

Condizione: New. Brand New. Soft Cover International Edition. Different ISBN and Cover Image. Priced lower than the standard editions which is usually intended to make them more affordable for students abroad. The core content of the book is generally the same as the standard edition. The country selling restrictions may be printed on the book but is no problem for the self-use. This Item maybe shipped from US or any other country as we have multiple locations worldwide.…

Condizione: New. Brand New. Soft Cover International Edition. Different ISBN and Cover Image. Priced lower than the standard editions which is usually intended to make them more affordable for students abroad. The core content of the book is generally the same as the standard edition. The country selling restrictions may be printed on the book but is no problem for the self-use. This Item maybe shipped from US or any other country as we have multiple locations worldwide.…

Condizione: New. Brand New, Softcover edition. This item may ship from the US or our Overseas warehouse depending on your location and stock availability.

Condizione: New. Brand New, Softcover edition. This item may ship from the US or our Overseas warehouse depending on your location and stock availability.

Condizione: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In fair condition, suitable as a study copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,850grams, ISBN:0442209959.…

Condizione: New.

Condizione: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,850grams, ISBN:0120451409. …

Condizione: New.

Condizione: New.

Condizione: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In fair condition, suitable as a study copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,1050grams, ISBN:9780120451425.…

Condizione: Used. pp. 555 2nd Edition.

Condizione: Used. pp. 555.

paperback. Condizione: New. Paperback. Pub Date :2014-03-01 Pages: 464 Language: Chinese Publisher: Electronic Industry Press fiber is one of the great inventions of the 20th century. and its light-guiding properties of perfection. it is difficult to imagine there will be a better alternative person. This book is an important translation optics. photonics and optical fiber communications. the main contents include pulses in optical fiber transmission. group velocity dispersion. self-phase modulation. optical solitons. p.…

Condizione: Used. pp. 555.

Hardback. Condizione: New. New copy - Usually dispatched within 4 working days.

Condizione: New. pp. xv + 461 Illus.

Hardback. Condizione: New. New copy - Usually dispatched within 4 working days.

Condizione: New. pp. xiv + 427 Illus.

Condizione: New. pp. xv + 461.

Condizione: New. pp. xiv + 427.